Knowing when to shop

I just found out a valuable shopping tip today. If you go to Giant Eagle on a weekday morning (not Monday) they will have meat marked down from the day before. It will have yellow mark down labels. I got organic Nature's Basket ground beef this morning for $2.50/lb. Also some bagged salad had yellow peelie coupons $1 off. I got some baby spinach for $1.50.